Atwood Furnace Ignites But Won't Stay On - Page 2 - Fiberglass RV


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Old 12-01-2018, 03:12 PM   #21
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Name: Charlie Y
Trailer: Escape 21 - Felicity
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Have you considered just sliding the furnace out and take it to a repair shop to have them fix and lube anything that moves after so little use?



Also easier to troubleshoot on a bench than in the rig....
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Old 12-04-2018, 11:55 AM   #22
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Name: Ray
Trailer: scamp
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furnace guy

OK I have a good furnance guy. (Bloomington heating and cooling if you are local) He camps and knows the stuff on this too. I left my camper with him for a few days and he worked on it during some idle time and didn't charge me a lot. Fixed it right up. Much cheaper and much closer than a rv place that works on them.

Might see what your local furance guys tell you.


Also if you disassemble it, it has to be put back together with new gaskets.
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Old 02-04-2019, 09:28 AM   #23
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Name: James
Trailer: Boles Aero
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Heater woes

Kathryn,


The suggestion about the auto shutoff sounds like the best I've heard. There's a tiny pipe that gets heated by the flame. It's a thermocouple (produces electricity from the heat) and that tells the controller that the flame is ON. If thats damaged, no juice. After the programmed time, the controller sees no current there and shuts off the gas to prevent a buildup of unfired gasses, preventing the loud and disconcerting boom and uncontrolled fire. This must be fixed or (more likely today) replaced (probably the entire controller) by a qualified tech.


The other possibility that occurs to me is a lack of sufficient gas flow to the burner, possibly caused by a kinked or squashed propane line somewhere between the tank and the burner. This would allow sufficient pressure to light the burner, but as the main flame consumed the gas in the line, the pressure and flow would drop, causing the shutoff. Gas is still flowing slowly, the pressure would rebuild allowing a relight and repeat.


Either scenario is possible, but you can check the gas line visually without spending money on a technician. If that doesn't look like the problem, take it to a pro.


And check to make sure your camper's propane alarm is working, so you won't be asphyxiated or blown up in the night by a propane leak. Propane is heavier than air, so tends to pool up (as would water) in anyplace where it can't flow out.
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